We now have two lists of "Top" people. The "Top rated" and "Top contributors" lists.
I think it would be a rewarding experience, if there was yet another "Top solver" list, sorting the registered people by the number of problems they have solved. That would stimulate low rated participants to practice more while enjoying small advancements in another type of ladder. What do you think? :)
Problemset - Standings
Or this is not that you are talking about? You want to see list of users sorted by number of problems they had solved during contests?
Because of the opportunity to cheat, this statistics can be fake for some people so this list shouldn't be located at the front page.